Add a Shape Map: Follow the instructions below to create the map as shown in the picture
Please also see the GIF for the Shape Map instructions above
Map Legend: The Shape Map does not come with a legend. Please click the 
and save the legend image to your computer.
See how to add the Legend the GIF below
Volume Map:
1. Copy and paste the Selling Price Map
2. Replace Avg Price with Volume on the color saturation
3. Change the title to Volume
4. Copy and paste the legend to the map.
Revenue Map: Repeat the Volume Map instructions above and replace volume with Revenue
Below is what your dashboard should look like so far
If you do not have the Shape map enabled, please read the documentation below and follow the instructions on how to enable it from the preview section under "options"
https://docs.microsoft.com/en-us/power-bi/visuals/desktop-shape-map